The experience of a nightmare about spiders after a spider-related incident. Most often experienced by those with arachnophobia or extreme anxiety in the presence of a large and/or poisonous spider. Can often result in screams and leaping out of bed before fully awake, most likely due to their very realistic nature and tendency to be set in your actual sleeping environment.
That huge spider that I found crawling on me yesterday has given me spidermares
by carnim March 21, 2011

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